Growing community of inventors

Battle Creek, MI, United States of America

Harry Celms

Average Co-Inventor Count = 1.00

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 87

Harry CelmsHarry Celms (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Roblin Industries, Inc. (3 from 16 patents)


3 patents:

1. 4122955 - Display shelving

2. 4118044 - Gate mechanism for cart

3. 4067591 - Base for nestable shopping cart

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as of
12/19/2025
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